AUX AMCA-H09/4R1A, Service Manual

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AUX DC Inverter Free Match 50HZ R410A Free Match outdoor unit
76
Equivalent Pipe length L
＝
Actual Pipe length L+ Bend Qty× Equivalent pipe bend Oil Loop Qty × Equivalent
Oil Loop length
Sample:
AM2-H18/4DR1A Actual Pipe length is 25 meters, Gas pipe diameter is 9.52
mm. If there’s 5 bends and 2 oil loops
during the installation, then the equivalent pipe length should be:
L=25+0.18×5+1.3×2=28.5(m)
◇
Specification of Connection Pipe for Indoor Unit and Outdoor Unit
Cooling Capacity(Btu/h) 18000 24000 27000 36000 42000
Connection Pipe (mm)
Liquid Pipe
Φ6.35
Gas Pipe
Φ9.52
Max. Length(Each) 15
Max. Height (m) 10
Max. Bend Qty 5
Extra R410a per meter when the pipe length is more
than 5 meter (kg)
0.022
Caution:
1. The standard Pipe length is 5m, if the pipe length is less than this then no additional charging is necessary. If the
pipe length is more than this then you should charge more refrigerant into the system according to the above
Charging Data
2. The thickness of the pipe is 0.6-1.0, bearing pressure is 4.2MPa;
3. If the connection pipe is too long, the cooling capacity and stability would be decreased. And the more bend
quantity, the resistance in the piping system would be bigger, then the cooling and heating capacity would be
decreased even lead to compressor broken. We suggest you to use the shortest connection pipe according to the
pipe length parameter in this manual.If the height difference between outdoor and indoor unit is more than 5m, an
oil trap should be installed in the gas pipe for every 10 meters.